Link also goes up against pathetic enemies (cept for the Goblin Leader, Darknut, etc.). Ike goes up against well-trained soldiers from the Daein army and even goes against Berserk Ashnard if on Hard mode.

Granted, you get the help of one of the Laguz kings, but still. I'd think a man with the chaotic power of a "dark" god while riding a Wyvern would beat out beast Ganon.